7390857564 has 36 divisors (see below), whose sum is σ = 18691414560. Its totient is φ = 2462436480.

The previous prime is 7390857563. The next prime is 7390857581. The reversal of 7390857564 is 4657580937.

7390857564 is a `hidden beast` number, since 7 + 3 + 9 + 0 + 8 + 575 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 7390857564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7390857563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28429 + ... + 124859.

It is an arithmetic number, because the mean of its divisors is an integer number (519205960).

Almost surely, 2^7390857564 is an apocalyptic number.

It is an amenable number.

7390857564 is an abundant number, since it is smaller than the sum of its proper divisors (11300556996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7390857564 is a wasteful number, since it uses less digits than its factorization.

7390857564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98570 (or 98565 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The square root of 7390857564 is about 85970.0969174747. The cubic root of 7390857564 is about 1947.8923152051.

The spelling of 7390857564 in words is "seven billion, three hundred ninety million, eight hundred fifty-seven thousand, five hundred sixty-four".